OpenPose  1.7.0
The first real-time multi-person system to jointly detect human body, hand, facial, and foot keypoints
flags.hpp
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1 #ifndef OPENPOSE_FLAGS_HPP
2 #define OPENPOSE_FLAGS_HPP
3 
4 // Note: This class is not included within the basic OpenPose `headers.hpp` and must be explicitly included. In
5 // addition, Google Flags library must also be linked to the resulting binary or library. OpenPose library does
6 // not force to use Google Flags, but the OpenPose examples do so.
7 
8 // GFlags: DEFINE_bool, _int32, _int64, _uint64, _double, _string
9 #include <gflags/gflags.h>
10 // Allow Google Flags in Ubuntu 14
11 #ifndef GFLAGS_GFLAGS_H_
12  namespace gflags = google;
13 #endif
14 
15 // See all the available parameter options with the `--help` flag. E.g., `build/examples/openpose/openpose.bin --help`
16 // Note: This command will show you flags for other unnecessary 3rdparty files. Check only the flags for the OpenPose
17 // executable. E.g., for `openpose.bin`, look for `Flags from examples/openpose/openpose.cpp:`.
18 // Debugging/Other
19 DEFINE_int32(logging_level, 3, "The logging level. Integer in the range [0, 255]. 0 will output any opLog() message,"
20  " while 255 will not output any. Current OpenPose library messages are in the range 0-4:"
21  " 1 for low priority messages and 4 for important ones.");
22 DEFINE_bool(disable_multi_thread, false, "It would slightly reduce the frame rate in order to highly reduce the lag. Mainly useful"
23  " for 1) Cases where it is needed a low latency (e.g., webcam in real-time scenarios with"
24  " low-range GPU devices); and 2) Debugging OpenPose when it is crashing to locate the"
25  " error.");
26 DEFINE_int32(profile_speed, 1000, "If PROFILER_ENABLED was set in CMake or Makefile.config files, OpenPose will show some"
27  " runtime statistics at this frame number.");
28 #ifndef OPENPOSE_FLAGS_DISABLE_POSE
29 #ifndef OPENPOSE_FLAGS_DISABLE_PRODUCER
30 // Producer
31 DEFINE_int32(camera, -1, "The camera index for cv::VideoCapture. Integer in the range [0, 9]. Select a negative"
32  " number (by default), to auto-detect and open the first available camera.");
33 DEFINE_string(camera_resolution, "-1x-1", "Set the camera resolution (either `--camera` or `--flir_camera`). `-1x-1` will use the"
34  " default 1280x720 for `--camera`, or the maximum flir camera resolution available for"
35  " `--flir_camera`");
36 DEFINE_string(video, "", "Use a video file instead of the camera. Use `examples/media/video.avi` for our default"
37  " example video.");
38 DEFINE_string(image_dir, "", "Process a directory of images. Use `examples/media/` for our default example folder with 20"
39  " images. Read all standard formats (jpg, png, bmp, etc.).");
40 DEFINE_bool(flir_camera, false, "Whether to use FLIR (Point-Grey) stereo camera.");
41 DEFINE_int32(flir_camera_index, -1, "Select -1 (default) to run on all detected flir cameras at once. Otherwise, select the flir"
42  " camera index to run, where 0 corresponds to the detected flir camera with the lowest"
43  " serial number, and `n` to the `n`-th lowest serial number camera.");
44 DEFINE_string(ip_camera, "", "String with the IP camera URL. It supports protocols like RTSP and HTTP.");
45 DEFINE_uint64(frame_first, 0, "Start on desired frame number. Indexes are 0-based, i.e., the first frame has index 0.");
46 DEFINE_uint64(frame_step, 1, "Step or gap between processed frames. E.g., `--frame_step 5` would read and process frames"
47  " 0, 5, 10, etc..");
48 DEFINE_uint64(frame_last, -1, "Finish on desired frame number. Select -1 to disable. Indexes are 0-based, e.g., if set to"
49  " 10, it will process 11 frames (0-10).");
50 DEFINE_bool(frame_flip, false, "Flip/mirror each frame (e.g., for real time webcam demonstrations).");
51 DEFINE_int32(frame_rotate, 0, "Rotate each frame, 4 possible values: 0, 90, 180, 270.");
52 DEFINE_bool(frames_repeat, false, "Repeat frames when finished.");
53 DEFINE_bool(process_real_time, false, "Enable to keep the original source frame rate (e.g., for video). If the processing time is"
54  " too long, it will skip frames. If it is too fast, it will slow it down.");
55 DEFINE_string(camera_parameter_path, "models/cameraParameters/flir/", "String with the folder where the camera parameters are located. If there"
56  " is only 1 XML file (for single video, webcam, or images from the same camera), you must"
57  " specify the whole XML file path (ending in .xml).");
58 DEFINE_bool(frame_undistort, false, "If false (default), it will not undistort the image, if true, it will undistortionate them"
59  " based on the camera parameters found in `camera_parameter_path`");
60 #endif // OPENPOSE_FLAGS_DISABLE_PRODUCER
61 // OpenPose
62 DEFINE_string(model_folder, "models/", "Folder path (absolute or relative) where the models (pose, face, ...) are located.");
63 DEFINE_string(prototxt_path, "", "The combination `--model_folder` + `--prototxt_path` represents the whole path to the"
64  " prototxt file. If empty, it will use the default OpenPose ProtoTxt file.");
65 DEFINE_string(caffemodel_path, "", "The combination `--model_folder` + `--caffemodel_path` represents the whole path to the"
66  " caffemodel file. If empty, it will use the default OpenPose CaffeModel file.");
67 DEFINE_string(output_resolution, "-1x-1", "The image resolution (display and output). Use \"-1x-1\" to force the program to use the"
68  " input image resolution.");
69 DEFINE_int32(num_gpu, -1, "The number of GPU devices to use. If negative, it will use all the available GPUs in your"
70  " machine.");
71 DEFINE_int32(num_gpu_start, 0, "GPU device start number.");
72 DEFINE_int32(keypoint_scale, 0, "Scaling of the (x,y) coordinates of the final pose data array, i.e., the scale of the (x,y)"
73  " coordinates that will be saved with the `write_json` & `write_keypoint` flags."
74  " Select `0` to scale it to the original source resolution; `1`to scale it to the net output"
75  " size (set with `net_resolution`); `2` to scale it to the final output size (set with"
76  " `resolution`); `3` to scale it in the range [0,1], where (0,0) would be the top-left"
77  " corner of the image, and (1,1) the bottom-right one; and 4 for range [-1,1], where"
78  " (-1,-1) would be the top-left corner of the image, and (1,1) the bottom-right one. Non"
79  " related with `scale_number` and `scale_gap`.");
80 DEFINE_int32(number_people_max, -1, "This parameter will limit the maximum number of people detected, by keeping the people with"
81  " top scores. The score is based in person area over the image, body part score, as well as"
82  " joint score (between each pair of connected body parts). Useful if you know the exact"
83  " number of people in the scene, so it can remove false positives (if all the people have"
84  " been detected. However, it might also include false negatives by removing very small or"
85  " highly occluded people. -1 will keep them all.");
86 DEFINE_bool(maximize_positives, false, "It reduces the thresholds to accept a person candidate. It highly increases both false and"
87  " true positives. I.e., it maximizes average recall but could harm average precision.");
88 DEFINE_double(fps_max, -1., "Maximum processing frame rate. By default (-1), OpenPose will process frames as fast as"
89  " possible. Example usage: If OpenPose is displaying images too quickly, this can reduce"
90  " the speed so the user can analyze better each frame from the GUI.");
91 // OpenPose Body Pose
92 DEFINE_int32(body, 1, "Select 0 to disable body keypoint detection (e.g., for faster but less accurate face"
93  " keypoint detection, custom hand detector, etc.), 1 (default) for body keypoint"
94  " estimation, and 2 to disable its internal body pose estimation network but still"
95  " still run the greedy association parsing algorithm");
96 DEFINE_string(model_pose, "BODY_25", "Model to be used. E.g., `BODY_25` (fastest for CUDA version, most accurate, and includes"
97  " foot keypoints), `COCO` (18 keypoints), `MPI` (15 keypoints, least accurate model but"
98  " fastest on CPU), `MPI_4_layers` (15 keypoints, even faster but less accurate).");
99 DEFINE_string(net_resolution, "-1x368", "Multiples of 16. If it is increased, the accuracy potentially increases. If it is"
100  " decreased, the speed increases. For maximum speed-accuracy balance, it should keep the"
101  " closest aspect ratio possible to the images or videos to be processed. Using `-1` in"
102  " any of the dimensions, OP will choose the optimal aspect ratio depending on the user's"
103  " input value. E.g., the default `-1x368` is equivalent to `656x368` in 16:9 resolutions,"
104  " e.g., full HD (1980x1080) and HD (1280x720) resolutions.");
105 DEFINE_double(net_resolution_dynamic, 1., "This flag only applies to images or custom inputs (not to video or webcam). If it is zero"
106  " or a negative value, it means that using `-1` in `net_resolution` will behave as explained"
107  " in its description. Otherwise, and to avoid out of memory errors, the `-1` in"
108  " `net_resolution` will clip to this value times the default 16/9 aspect ratio value (which"
109  " is 656 width for a 368 height). E.g., `net_resolution_dynamic 10 net_resolution -1x368`"
110  " will clip to 6560x368 (10 x 656). Recommended 1 for small GPUs (to avoid out of memory"
111  " errors but maximize speed) and 0 for big GPUs (for maximum accuracy and speed).");
112 DEFINE_int32(scale_number, 1, "Number of scales to average.");
113 DEFINE_double(scale_gap, 0.25, "Scale gap between scales. No effect unless scale_number > 1. Initial scale is always 1."
114  " If you want to change the initial scale, you actually want to multiply the"
115  " `net_resolution` by your desired initial scale.");
116 // OpenPose Body Pose Heatmaps and Part Candidates
117 DEFINE_bool(heatmaps_add_parts, false, "If true, it will fill op::Datum::poseHeatMaps array with the body part heatmaps, and"
118  " analogously face & hand heatmaps to op::Datum::faceHeatMaps & op::Datum::handHeatMaps."
119  " If more than one `add_heatmaps_X` flag is enabled, it will place then in sequential"
120  " memory order: body parts + bkg + PAFs. It will follow the order on"
121  " POSE_BODY_PART_MAPPING in `src/openpose/pose/poseParameters.cpp`. Program speed will"
122  " considerably decrease. Not required for OpenPose, enable it only if you intend to"
123  " explicitly use this information later.");
124 DEFINE_bool(heatmaps_add_bkg, false, "Same functionality as `add_heatmaps_parts`, but adding the heatmap corresponding to"
125  " background.");
126 DEFINE_bool(heatmaps_add_PAFs, false, "Same functionality as `add_heatmaps_parts`, but adding the PAFs.");
127 DEFINE_int32(heatmaps_scale, 2, "Set 0 to scale op::Datum::poseHeatMaps in the range [-1,1], 1 for [0,1]; 2 for integer"
128  " rounded [0,255]; and 3 for no scaling.");
129 DEFINE_bool(part_candidates, false, "Also enable `write_json` in order to save this information. If true, it will fill the"
130  " op::Datum::poseCandidates array with the body part candidates. Candidates refer to all"
131  " the detected body parts, before being assembled into people. Note that the number of"
132  " candidates is equal or higher than the number of final body parts (i.e., after being"
133  " assembled into people). The empty body parts are filled with 0s. Program speed will"
134  " slightly decrease. Not required for OpenPose, enable it only if you intend to explicitly"
135  " use this information.");
136 DEFINE_double(upsampling_ratio, 0., "Upsampling ratio between the `net_resolution` and the output net results. A value less"
137  " or equal than 0 (default) will use the network default value (recommended).");
138 // OpenPose Face
139 DEFINE_bool(face, false, "Enables face keypoint detection. It will share some parameters from the body pose, e.g."
140  " `model_folder`. Note that this will considerable slow down the performance and increase"
141  " the required GPU memory. In addition, the greater number of people on the image, the"
142  " slower OpenPose will be.");
143 DEFINE_int32(face_detector, 0, "Kind of face rectangle detector. Select 0 (default) to select OpenPose body detector (most"
144  " accurate one and fastest one if body is enabled), 1 to select OpenCV face detector (not"
145  " implemented for hands), 2 to indicate that it will be provided by the user, or 3 to"
146  " also apply hand tracking (only for hand). Hand tracking might improve hand keypoint"
147  " detection for webcam (if the frame rate is high enough, i.e., >7 FPS per GPU) and video."
148  " This is not person ID tracking, it simply looks for hands in positions at which hands were"
149  " located in previous frames, but it does not guarantee the same person ID among frames.");
150 DEFINE_string(face_net_resolution, "368x368", "Multiples of 16 and squared. Analogous to `net_resolution` but applied to the face keypoint"
151  " detector. 320x320 usually works fine while giving a substantial speed up when multiple"
152  " faces on the image.");
153 // OpenPose Hand
154 DEFINE_bool(hand, false, "Enables hand keypoint detection. It will share some parameters from the body pose, e.g."
155  " `model_folder`. Analogously to `--face`, it will also slow down the performance, increase"
156  " the required GPU memory and its speed depends on the number of people.");
157 DEFINE_int32(hand_detector, 0, "Kind of hand rectangle detector. Analogous to `--face_detector`.");
158 DEFINE_string(hand_net_resolution, "368x368", "Multiples of 16 and squared. Analogous to `net_resolution` but applied to the hand keypoint"
159  " detector.");
160 DEFINE_int32(hand_scale_number, 1, "Analogous to `scale_number` but applied to the hand keypoint detector. Our best results"
161  " were found with `hand_scale_number` = 6 and `hand_scale_range` = 0.4.");
162 DEFINE_double(hand_scale_range, 0.4, "Analogous purpose than `scale_gap` but applied to the hand keypoint detector. Total range"
163  " between smallest and biggest scale. The scales will be centered in ratio 1. E.g., if"
164  " scaleRange = 0.4 and scalesNumber = 2, then there will be 2 scales, 0.8 and 1.2.");
165 // OpenPose 3-D Reconstruction
166 DEFINE_bool(3d, false, "Running OpenPose 3-D reconstruction demo: 1) Reading from a stereo camera system."
167  " 2) Performing 3-D reconstruction from the multiple views. 3) Displaying 3-D reconstruction"
168  " results. Note that it will only display 1 person. If multiple people is present, it will"
169  " fail.");
170 DEFINE_int32(3d_min_views, -1, "Minimum number of views required to reconstruct each keypoint. By default (-1), it will"
171  " require max(2, min(4, #cameras-1)) cameras to see the keypoint in order to reconstruct"
172  " it.");
173 DEFINE_int32(3d_views, -1, "Complementary option for `--image_dir` or `--video`. OpenPose will read as many images per"
174  " iteration, allowing tasks such as stereo camera processing (`--3d`). Note that"
175  " `--camera_parameter_path` must be set. OpenPose must find as many `xml` files in the"
176  " parameter folder as this number indicates.");
177 // Extra algorithms
178 DEFINE_bool(identification, false, "Experimental, not available yet. Whether to enable people identification across frames.");
179 DEFINE_int32(tracking, -1, "Experimental, not available yet. Whether to enable people tracking across frames. The"
180  " value indicates the number of frames where tracking is run between each OpenPose keypoint"
181  " detection. Select -1 (default) to disable it or 0 to run simultaneously OpenPose keypoint"
182  " detector and tracking for potentially higher accuracy than only OpenPose.");
183 DEFINE_int32(ik_threads, 0, "Experimental, not available yet. Whether to enable inverse kinematics (IK) from 3-D"
184  " keypoints to obtain 3-D joint angles. By default (0 threads), it is disabled. Increasing"
185  " the number of threads will increase the speed but also the global system latency.");
186 // OpenPose Rendering
187 DEFINE_int32(part_to_show, 0, "Prediction channel to visualize: 0 (default) for all the body parts, 1 for the background"
188  " heat map, 2 for the superposition of heatmaps, 3 for the superposition of PAFs,"
189  " 4-(4+#keypoints) for each body part heat map, the following ones for each body part pair"
190  " PAF.");
191 DEFINE_bool(disable_blending, false, "If enabled, it will render the results (keypoint skeletons or heatmaps) on a black"
192  " background, instead of being rendered into the original image. Related: `part_to_show`,"
193  " `alpha_pose`, and `alpha_pose`.");
194 // OpenPose Rendering Pose
195 DEFINE_double(render_threshold, 0.05, "Only estimated keypoints whose score confidences are higher than this threshold will be"
196  " rendered. Note: Rendered refers only to visual display in the OpenPose basic GUI, not in"
197  " the saved results. Generally, a high threshold (> 0.5) will only render very clear body"
198  " parts; while small thresholds (~0.1) will also output guessed and occluded keypoints,"
199  " but also more false positives (i.e., wrong detections).");
200 DEFINE_int32(render_pose, -1, "Set to 0 for no rendering, 1 for CPU rendering (slightly faster), and 2 for GPU rendering"
201  " (slower but greater functionality, e.g., `alpha_X` flags). If -1, it will pick CPU if"
202  " CPU_ONLY is enabled, or GPU if CUDA is enabled. If rendering is enabled, it will render"
203  " both `outputData` and `cvOutputData` with the original image and desired body part to be"
204  " shown (i.e., keypoints, heat maps or PAFs).");
205 DEFINE_double(alpha_pose, 0.6, "Blending factor (range 0-1) for the body part rendering. 1 will show it completely, 0 will"
206  " hide it. Only valid for GPU rendering.");
207 DEFINE_double(alpha_heatmap, 0.7, "Blending factor (range 0-1) between heatmap and original frame. 1 will only show the"
208  " heatmap, 0 will only show the frame. Only valid for GPU rendering.");
209 // OpenPose Rendering Face
210 DEFINE_double(face_render_threshold, 0.4, "Analogous to `render_threshold`, but applied to the face keypoints.");
211 DEFINE_int32(face_render, -1, "Analogous to `render_pose` but applied to the face. Extra option: -1 to use the same"
212  " configuration that `render_pose` is using.");
213 DEFINE_double(face_alpha_pose, 0.6, "Analogous to `alpha_pose` but applied to face.");
214 DEFINE_double(face_alpha_heatmap, 0.7, "Analogous to `alpha_heatmap` but applied to face.");
215 // OpenPose Rendering Hand
216 DEFINE_double(hand_render_threshold, 0.2, "Analogous to `render_threshold`, but applied to the hand keypoints.");
217 DEFINE_int32(hand_render, -1, "Analogous to `render_pose` but applied to the hand. Extra option: -1 to use the same"
218  " configuration that `render_pose` is using.");
219 DEFINE_double(hand_alpha_pose, 0.6, "Analogous to `alpha_pose` but applied to hand.");
220 DEFINE_double(hand_alpha_heatmap, 0.7, "Analogous to `alpha_heatmap` but applied to hand.");
221 #ifndef OPENPOSE_FLAGS_DISABLE_DISPLAY
222 // Display
223 DEFINE_bool(fullscreen, false, "Run in full-screen mode (press f during runtime to toggle).");
224 DEFINE_bool(no_gui_verbose, false, "Do not write text on output images on GUI (e.g., number of current frame and people). It"
225  " does not affect the pose rendering.");
226 DEFINE_int32(display, -1, "Display mode: -1 for automatic selection; 0 for no display (useful if there is no X server"
227  " and/or to slightly speed up the processing if visual output is not required); 2 for 2-D"
228  " display; 3 for 3-D display (if `--3d` enabled); and 1 for both 2-D and 3-D display.");
229 #endif // OPENPOSE_FLAGS_DISABLE_DISPLAY
230 // Command Line Interface Verbose
231 DEFINE_double(cli_verbose, -1.f, "If -1, it will be disabled (default). If it is a positive integer number, it will print on"
232  " the command line every `verbose` frames. If number in the range (0,1), it will print the"
233  " progress every `verbose` times the total of frames.");
234 // Result Saving
235 DEFINE_string(write_images, "", "Directory to write rendered frames in `write_images_format` image format.");
236 DEFINE_string(write_images_format, "png", "File extension and format for `write_images`, e.g., png, jpg or bmp. Check the OpenCV"
237  " function cv::imwrite for all compatible extensions.");
238 DEFINE_string(write_video, "", "Full file path to write rendered frames in motion JPEG video format. It might fail if the"
239  " final path does not finish in `.avi`. It internally uses cv::VideoWriter. Flag"
240  " `write_video_fps` controls FPS. Alternatively, the video extension can be `.mp4`,"
241  " resulting in a file with a much smaller size and allowing `--write_video_with_audio`."
242  " However, that would require: 1) Ubuntu or Mac system, 2) FFmpeg library installed"
243  " (`sudo apt-get install ffmpeg`), 3) the creation temporarily of a folder with the same"
244  " file path than the final video (without the extension) to storage the intermediate frames"
245  " that will later be used to generate the final MP4 video.");
246 DEFINE_double(write_video_fps, -1., "Frame rate for the recorded video. By default, it will try to get the input frames producer"
247  " frame rate (e.g., input video or webcam frame rate). If the input frames producer does not"
248  " have a set FPS (e.g., image_dir or webcam if OpenCV not compiled with its support), set"
249  " this value accordingly (e.g., to the frame rate displayed by the OpenPose GUI).");
250 DEFINE_bool(write_video_with_audio, false, "If the input is video and the output is so too, it will save the video with audio. It"
251  " requires the output video file path finishing in `.mp4` format (see `write_video` for"
252  " details).");
253 DEFINE_string(write_video_3d, "", "Analogous to `--write_video`, but applied to the 3D output.");
254 DEFINE_string(write_video_adam, "", "Experimental, not available yet. Analogous to `--write_video`, but applied to Adam model.");
255 DEFINE_string(write_json, "", "Directory to write OpenPose output in JSON format. It includes body, hand, and face pose"
256  " keypoints (2-D and 3-D), as well as pose candidates (if `--part_candidates` enabled).");
257 DEFINE_string(write_coco_json, "", "Full file path to write people pose data with JSON COCO validation format. If foot, face,"
258  " hands, etc. JSON is also desired (`--write_coco_json_variants`), they are saved with"
259  " different file name suffix.");
260 DEFINE_int32(write_coco_json_variants, 1, "Add 1 for body, add 2 for foot, 4 for face, and/or 8 for hands. Use 0 to use all the"
261  " possible candidates. E.g., 7 would mean body+foot+face COCO JSON.");
262 DEFINE_int32(write_coco_json_variant, 0, "Currently, this option is experimental and only makes effect on car JSON generation. It"
263  " selects the COCO variant for cocoJsonSaver.");
264 DEFINE_string(write_heatmaps, "", "Directory to write body pose heatmaps in PNG format. At least 1 `add_heatmaps_X` flag"
265  " must be enabled.");
266 DEFINE_string(write_heatmaps_format, "png", "File extension and format for `write_heatmaps`, analogous to `write_images_format`."
267  " For lossless compression, recommended `png` for integer `heatmaps_scale` and `float` for"
268  " floating values. See `doc/02_output.md` for more details.");
269 DEFINE_string(write_keypoint, "", "(Deprecated, use `write_json`) Directory to write the people pose keypoint data. Set format"
270  " with `write_keypoint_format`.");
271 DEFINE_string(write_keypoint_format, "yml", "(Deprecated, use `write_json`) File extension and format for `write_keypoint`: json, xml,"
272  " yaml & yml. Json not available for OpenCV < 3.0, use `write_json` instead.");
273 // Result Saving - Extra Algorithms
274 DEFINE_string(write_bvh, "", "Experimental, not available yet. E.g., `~/Desktop/mocapResult.bvh`.");
275 // UDP Communication
276 DEFINE_string(udp_host, "", "Experimental, not available yet. IP for UDP communication. E.g., `192.168.0.1`.");
277 DEFINE_string(udp_port, "8051", "Experimental, not available yet. Port number for UDP communication.");
278 #endif // OPENPOSE_FLAGS_DISABLE_POSE
279 
280 #endif // OPENPOSE_FLAGS_HPP
DEFINE_uint64
DEFINE_uint64(frame_first, 0, "Start on desired frame number. Indexes are 0-based, i.e., the first frame has index 0.")
DEFINE_int32
DEFINE_int32(logging_level, 3, "The logging level. Integer in the range [0, 255]. 0 will output any opLog() message," " while 255 will not output any. Current OpenPose library messages are in the range 0-4:" " 1 for low priority messages and 4 for important ones.")
DEFINE_string
DEFINE_string(camera_resolution, "-1x-1", "Set the camera resolution (either `--camera` or `--flir_camera`). `-1x-1` will use the" " default 1280x720 for `--camera`, or the maximum flir camera resolution available for" " `--flir_camera`")
DEFINE_double
DEFINE_double(fps_max, -1., "Maximum processing frame rate. By default (-1), OpenPose will process frames as fast as" " possible. Example usage: If OpenPose is displaying images too quickly, this can reduce" " the speed so the user can analyze better each frame from the GUI.")
DEFINE_bool
DEFINE_bool(disable_multi_thread, false, "It would slightly reduce the frame rate in order to highly reduce the lag. Mainly useful" " for 1) Cases where it is needed a low latency (e.g., webcam in real-time scenarios with" " low-range GPU devices); and 2) Debugging OpenPose when it is crashing to locate the" " error.")